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14 views

ArcMap crashing from multiple tools? [on hold]

Just uninstalled Desktop & Python27 folder and did full re-install. Still having this problem where ArcMap crashes when calculating fields, trying to open Geoprocessing Tools or Toolbox. Probably ...
2
votes
1answer
34 views

Shapefile to polygon, then edit the polygon in order to use it as a mold

I am working on QGIS with a shapefile: I transform it through Raster-> Conversion-> Polygonize Then I eliminate some parts (Sea), and those that are bigger than one single square of grid but are ...
2
votes
1answer
68 views
+50

Split Lines with Points PostGIS

I have a line table and a points table in PostGIS. I need to split the line table with the points table and return all geometries. Tried... CREATE TABLE lines_split AS ( SELECT a.seg_name, ((ST_DUMP(...
1
vote
1answer
26 views

Text element not updating in arcpy.mapping?

I am trying to get a text element to input an address using the below code. It seems that the code picks up the right elements, is finding the text elements I want to change but isn't able to actually ...
2
votes
2answers
57 views

Aligning an edge to match another edge

I'm new to QGIS and I wonder whether there is a tool that helps to adjust the edges between two or more polygons; similar to that topology tool that's used in ArcGIS. http://desktop.arcgis.com/en/...
0
votes
1answer
23 views

QField operating system

Does anybody know if Qfield can run on Ipad? My understanding is it was build to run on Android 4.3 or later version. Anybodu knows if it can run on with IOS?
0
votes
1answer
19 views

OGR2OGR - converting a GML file to GeoJSON

I'm struggling to use ogr2ogr to convert a GML file into a GeoJSON file. My input is zipped GML files with several layers. I'm only interested in the layer with name 'TopographicArea'. I've tried ...
0
votes
1answer
14 views

Rename store using REST API

So, it appears that I can rename a store name (both DataStores and CoverageStores) from the WebUI (v2.13.2 and 2.15.2) but I cannot do it via the REST API. It returns a 403 error when I do this: curl ...
0
votes
0answers
20 views

Customizing legend in layerlist widget of ArcGIS API for JavaScript?

Here is an example code that I use in my work. There are a few issues with this: The layer title appears one more time in the legend of layerlist. How can I remove it or change to other text? ...
2
votes
1answer
39 views

Network service area mapping over open ground

Given a timestamped start location, a timestamped end location and a known average speed is there any way I can map everywhere someone (or something) could have possibly been between the two ...
1
vote
0answers
29 views

Plotting CDF of the values in a raster (.tif) file, using Python or QGIS?

I have a tiff file with some values and I want to read those values and plot a CDF (Cumulative Distribution Function). So far I only know how to get the mean value from osgeo import gdal gtif = gdal....
1
vote
1answer
20 views

Spatial Join Polygon to Polygon with Centroids Inside features

I have a parcel feature class with +5M features. I want to spatially join it to a feature class of regions to check if the regional code matches that in the parcel data. I've tried using "have their ...
0
votes
1answer
41 views

Getting Projection Code (EPSG) from Coordinates and known location

I have Coordinates (x=3381438.573, y=5794542.432) and a location (somewhere south of Berlin). Is there a way to find out the Projection code this data was defined with? A website would be nice.
1
vote
1answer
39 views

Iterate a clip over multiple feature classes using Model Builder or ArcPy

I have multiple feature classes (buildings, airport, land, roads etc) that I would like to clip using a Local Authority boundary. I am trying to create a process in model builder or Arcpy that will ...
1
vote
0answers
21 views

Where has the QGIS2threejs Icon gone?

I am trying to create 3D maps. I am using QGis2threejs. I know I can also create a 3D map using 'New 3D Map View', but I want to try QGis2threejs. However I have two questions. When I install the ...
1
vote
0answers
17 views

Custom legend with concatenated fields on QGIS 3.8.1

I prepared a map with a custom legend on QGIS 3.8.1, combining a classification of several concatenated fields. However, when creating the layout compouser and including the legend, the descriptive ...
3
votes
2answers
76 views

QgsGeometry.length() giving wrong result?

I have a vector layer with Multilinestrings and used the field calculator to add a field ("length") with the calculated $length of each feature. I know the field values are correct. Now, if I ...
0
votes
0answers
24 views

Error: Unrecognized argument type to convert to a FeatureCollection: [object Object]

This code works in Earth Engine Code Editor, but it doesn't work in my server-side web app. I get Error: Unrecognized argument type to convert to a FeatureCollection: [object Object] //inputs is ...
-1
votes
0answers
26 views

Heat map with possibility of shading any country or province in the world?

My boss is collecting data which measures where visitors to our website are located. He wants me to make a choropleth map (I believe that's what it's called) in which countries and provinces are ...
0
votes
0answers
35 views

Converting multiple points to multiple polygons - ArcGIS Desktop 10.6.1

How can I convert multiple points to multiple (tiny polygons)? I need to execute a merge function and I need the points to be polygons so that the toolbox can do its job and join multiple polygon ...
-2
votes
1answer
30 views

Cluster Analysis on spatial data on R?

I sampled a population of an insect in an area and got GPS points. Now I want to investigate if there are subpopulations within the pop using distance from points. I have a dataset with coordinates ...
1
vote
1answer
26 views

QGIS: Clip Raster by Mask Layer-permanently remove black edges

I want to introduce geotiff images generated in QGIS by clipping ortho imagery to a shapefile into matlab. However, the clipped raster images come with black borders. I managed to remove them in QGIS (...
1
vote
1answer
76 views

Length of intersections from a linestring and a grid shapefile by using Python geopandas & QGIS

I am using Python geopandas and I have two shapefiles. One of them is a grid file containing equal polygons. The other shapefile is a linestring file with several lines and its Attributes. The idea ...
1
vote
0answers
23 views

Resampling while drawing rasterfiles in QGIS 3?

I can not find a solution to resample my rasterfiles in QGIS 3. With Arcmap usually I use "resample while drawing" with the method cubic or bilinear interpolation for continuous data to smooth my ...
3
votes
1answer
31 views

Find duplicate point geometries in a shapefile [on hold]

How to find a duplicate point geometries in point shapefile (around one lakh geometries) using Python OGR/GDAL
-1
votes
0answers
11 views

Atmospheric correction for Sentinel 2 in ENVI [on hold]

What is the best way for atmospheric correction on Sentinel 2 images with ENVI 5.3?
0
votes
1answer
31 views

Raster smoothing - assigning each raster the average value of its neighbors

I have a raster world map of population densities at a resolution of 30 arc seconds. For each raster, I want to find out the average density of neighbors within a certain distance (e.g. 0.1 degrees). ...
0
votes
0answers
25 views

WebScene: scene completely black in Chrome

We suddenly have problems visualizing ArcGIS Online WebScenes in Google Chrome (Version 76.0.3809.100 (Official Build) (64-bit)) and I am wondering if we are the only ones, as some searches returned ...
0
votes
1answer
20 views

qgis2threejs window is blank

I have used QGIS2threejs for several years in QGIS2. Now we have upgraded to QGIS3 at work and the plugin no longer works. The qgis2threejs window is blank and it displays the error “Any 3D objects ...
2
votes
1answer
41 views

Making polygon shapefile from unsorted point shapefile?

I have a point Shapefile with unsorted feature ID's (FID). I want to convert the same point file into polygon Shapefile by using python gdal/ogr. I got the help from link1 and link2. I'm able to make ...
0
votes
0answers
11 views

Changing pixel values by the average of neighbours in raster calculator?

I have a raster with values in each pixels. I need to change each pixel by the average of surrounding pixels. For example in the first row first column , the pixel value will be replaced by average ...
1
vote
1answer
19 views

Clipping a raster from quickmapservices or XYZ tiles

I'm trying to clip a google satellite XYZ tile over a layer mask of my DEM layer to make a 3D map. the problem is that after making the connection and adding it as a layer to my project, im unable to ...
0
votes
1answer
22 views

Seeking TopoJSON map of Chinese provinces which includes Hong Kong, Macau and Taiwan?

I have a TopoJSON map of China which is working well in d3.js. However, it is essential that I add Hong Kong, Macau/Macao and Taiwan to the map, but they are not included in the TopoJSON file. I have ...
1
vote
0answers
37 views

Move polygon to new location (find new lat-lng coordinates)

I need to move my polygon (region of geographical area) with 4 different (O1, O2, O3 and O4) lat-lng coordinates (as shown in the figure) to another place, so that I get new values of all 4 lat-lng ...
1
vote
1answer
22 views

PostGIS: ST_Azimuth between Points in same Table

I've seen the questions and answers about ST_Azimuth, but didn't find a specific example for this case: I need to calculate the azimuth from point id 1 to id 2, id 2 to id 3, id 3 to id 4, ... Table ...
2
votes
0answers
41 views

Saving what is inside a polygon coordinates as an image?

I am trying to get an image from inside a polygon. TLDR; What I am trying to do: save what's inside a polygon as an image. What is happening now: I am only able to save the canvas as an image. ...
1
vote
0answers
23 views

Creating a tile layer for a polygon for use in QGIS Atlas?

I want to create a series of plans at a set scale that covers a large area defined by a polygon. The polygons are a buffer for a water network, so is very irregular with sections that are long and ...
1
vote
0answers
20 views

Enable PostGIS extensions Windows local (non-admin) with Anaconda PostgreSQL

My organisation restricts admin privs on our machines, which means that installing OSGeo4Win would require a tech to come out (and as they're stretched pretty thin and I'm likely to need regular ...
1
vote
0answers
7 views

Saving a form .ui file with relative path?

My company uses QGIS 2.18 (soon to upgrade to 3.4) and I've designed a form to make data entry for our survey field staff a little less hateful. The .ui file is saved on a network drive, and as long ...
0
votes
0answers
13 views

Specifying distance units in ArcGIS Pro ModelBuilder buffer process

I'm trying to iterate on some buffer distances in ModelBuilder, and I want to be able to set the units in ModelBuilder. I have numeric (double or long) "multivalues", and I can connect the output of ...
1
vote
1answer
21 views

Transforming a GeoPackage table's geometry column into GeoJSON?

I have a GeoPackage that is downloaded to client devices for a mobile app. I need the clients to query the GeoPackage to retrieve a GeoJSON representation of the geom column. I'm familiar with ...
0
votes
0answers
13 views

Create KML or KMZ file using iOS Google Maps app

Is there a way to create a KML or KMZ file using the iOS Google Maps app? I’ve created a map on Google My Maps but can’t find a way to export it on Google Maps. I’ve tried the iOS app and the Google ...
1
vote
1answer
26 views

Projecting as USA_Contiguous_Albers_Equal_Area_Conic_USGS in QGIS?

Is it possible to project EPSG: 6350 (NAD83 (2011)) as WKID: 102039 (USA_Contiguous_Albers_Equal_Area_Conic_USGS) in QGIS? There is no EPSG code and I'm unsure how to create a custom CRS.
0
votes
0answers
39 views

Error in installing PostGIS extension through PostgreSQL 11

I am getting following issues while installing PostGIS extension.
0
votes
0answers
7 views

Route Planning Tool for Runners When Given Start Point, End Point, and Distance [on hold]

My orgnization has ArcGIS Enterprise 10.6.1. I also have ArcGIS Pro 2.4.1 and ArcMap 10.5.1. I also have most extentions available such as Network Analyst and Spatial Analyst. I would like to ...
0
votes
0answers
22 views

Getting updated list of US Zip Code with latitude and longitude?

I have the old list of US Zip Codes which is missing some of the zip codes. How can I get the Updated list of Zip Codes in CSV format?
1
vote
1answer
74 views

QGIS one to many join issue

I already asked in previous question QGIS table join issue, how to join shape file data and CSV data which contain multiple SAME ID for one object? Shape file contains columns: object id, area, ...
0
votes
1answer
13 views

Automatically assigning bins for vector graduated classes within a given range (QGIS 3)

Is there a way to assign graduated bins automatically for vectors within a given range in QGIS3? I am trying to produce a series of maps which share a same legend, but do not necessarily exhibit all ...
2
votes
0answers
39 views

Histogram matching in Google Earth Engine?

Does anyone know if there is a more GEE-friendly way of achieving this? I'm experimenting with S1 SAR image histogram matching in GEE and was wondering if foremost the code can be improved. Read here ...
-1
votes
0answers
15 views

qGIS Embedded Layers Not Persistent [on hold]

Documentation asserts "The Import button allows adding layers loaded in the map canvas into the Embedded layers list. This allows to later remove those layers from the Layers panel without breaking ...

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